Don't move a muscle.
3 seconds sound clip from the Space Jam movie soundboard.
You can hear this line at 00:13:48 in the Blu-ray version of the movie.
Quote context
[...]
- You know, maybe there is no intelligent life out there in the universe after all.
- Hold on there, Mr. Looney Tune.
- Hey, what do you think we are, stupid?
- Okay, bunny, gather up your Tune pals.
- We're taking you for a ride.
[...]